Publication result detail

Crack Growth in Ceramic Laminates with Strong Interfaces and Large Compressive Residual Stresses

KOTOUL, M.; ŠEVEČEK, O.; VYSLOUŽIL, T.

Original Title

Crack Growth in Ceramic Laminates with Strong Interfaces and Large Compressive Residual Stresses

English Title

Crack Growth in Ceramic Laminates with Strong Interfaces and Large Compressive Residual Stresses

Type

WoS Article

Original Abstract

Residual compressive stresses developed in layered ceramics may improve the crack resistance of the material during crack growth by reducing the crack driving force at the crack tip. i.e. R-curve behaviour occurs. Elastic contrast of layers often plays an important role by inducing an additional crack driving force term which can promote (anti-shield) or retard (shield) the crack propagation. Since the toughening effect of the residual stress state is often predicted by means of the weight function method, it is matter of interest to find limits for the application of weight function concept in elastically inhomogeneous laminates. Another objective of the paper is to investigate in detail the very process of crack transition across thermo-elastically mismatched layer interfaces. Due to the discontinuity in the elastic properties, finite crack extensions are to be considered instead of infinitesimal one. The concept of Finite Fracture Mechanics (FFM) is applied to tackle this problem.

English abstract

Residual compressive stresses developed in layered ceramics may improve the crack resistance of the material during crack growth by reducing the crack driving force at the crack tip. i.e. R-curve behaviour occurs. Elastic contrast of layers often plays an important role by inducing an additional crack driving force term which can promote (anti-shield) or retard (shield) the crack propagation. Since the toughening effect of the residual stress state is often predicted by means of the weight function method, it is matter of interest to find limits for the application of weight function concept in elastically inhomogeneous laminates. Another objective of the paper is to investigate in detail the very process of crack transition across thermo-elastically mismatched layer interfaces. Due to the discontinuity in the elastic properties, finite crack extensions are to be considered instead of infinitesimal one. The concept of Finite Fracture Mechanics (FFM) is applied to tackle this problem.

Keywords

Ceramic laminates; FEM; R-curve; residual stresses; bimaterial interface; finite fracture mechanics.

Key words in English

Ceramic laminates; FEM; R-curve; residual stresses; bimaterial interface; finite fracture mechanics.

Authors

KOTOUL, M.; ŠEVEČEK, O.; VYSLOUŽIL, T.

RIV year

2013

Released

15.10.2012

ISBN

0167-8442

Periodical

THEORETICAL AND APPLIED FRACTURE MECHANICS

Volume

2012 (61)

Number

1

State

Kingdom of the Netherlands

Pages from

40

Pages to

50

Pages count

11

BibTex

@article{BUT95677,
  author="Michal {Kotoul} and Oldřich {Ševeček} and Tomáš {Vysloužil}",
  title="Crack Growth in Ceramic Laminates with Strong Interfaces and Large Compressive Residual Stresses",
  journal="THEORETICAL AND APPLIED FRACTURE MECHANICS",
  year="2012",
  volume="2012 (61)",
  number="1",
  pages="40--50",
  doi="10.1016/j.tafmec.2012.08.005",
  issn="0167-8442"
}